Electrophilic aromatic substitutions to benzene and electrophilic additions to alkenes both involve a slow first step and a fast second step. Using Figure 4.5 as a guide, draw a reaction energy diagram for the reaction shown in eqs. 4.14 and 4.15.
Figure 4.5

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Transition State 1 Transition State 2 Base Benzenonium ion Reactants lectrophile Products Reaction coordinate